How can we improve the OneDrive web experiences?

distribution lists in OneDrive.com should be updated when they change in Outlook.com

This is a bug more than a feature. OneDrive uses old versions of distribution lists set up in Outlook.com. When you modify the distribution list in "People" in outlook.com and you subsequently use that list to "Share" a file in OneDrive.com, the list is not the up-to-date one.